ECRAN VEILLE LE PLUS BASIC Ecran veille, screensaver, setpixel, ScreenSaverProc, DefScreenSaverProc, Source N°47173

Information sur la source

Catégorie :Graphique Classé sous : Ecran veille, screensaver, setpixel, ScreenSaverProc, DefScreenSaverProc Niveau : Débutant Date de création : 01/07/2008 Vu / téléchargé: 1 580 / 90

Auteur : f_l_a_s_h_b_a_c_k

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Description

Cliquez pour voir la capture en taille normale

le plus court et le plus simple screensaver!!!!

utilise la lib scrnsave.lib de windows

fait des ronds sur l ecran vielle bouge la sourit pour changer

forme

utilise ScreenSaverProc pour demarer l application

et non int APIENTRY WinMain()

Source

#include <windows.h>
#include <scrnsave.h>
#include <math.h>
#include <commctrl.h>
#pragma comment(lib,"scrnsave.lib")
#pragma comment(lib,"comctl32.lib")
int delay=8;
const double Pi=3.1415926;
int Rand(int);
int Rand(int nMax)
{
static long seed=GetTickCount();
seed=(25173*seed+13849)%65535;
return abs(seed%nMax);
}
BOOL WINAPI ScreenSaverConfigureDialog(HWND hwnd,UINT message,
WPARAM wParam,LPARAM lParam)
{
return 0;
}
BOOL WINAPI RegisterDialogClasses(HANDLE hInst)
{
return 1;
}
LRESULT WINAPI ScreenSaverProc(HWND hwnd,UINT message,
WPARAM wParam,LPARAM lParam)
{
static HDC hdc;
static RECT scr_dim;
static SIZE size;
static HBRUSH hBlk_Brush;
static int d=1,c=1,q=3,center_x,center_y,hs,vs;
static long red,green,blue;
int i,x,y;
double xs,ys,temp,k=0.2;
switch(message)
{
case WM_CREATE:
SetTimer(hwnd,1,delay,NULL);
hBlk_Brush=(HBRUSH)GetStockObject(BLACK_BRUSH);//Background Black
red=Rand(256);
green=Rand(256);
blue=Rand(256);
hs=GetSystemMetrics(SM_CXSCREEN)/30;
vs=GetSystemMetrics(SM_CYSCREEN)/30;
//hs=GetSystemMetrics(SM_CXVIRTUALSCREEN)/30;
//vs=GetSystemMetrics(SM_CYVIRTUALSCREEN)/30;
break;
case WM_ERASEBKGND:
hdc=GetDC(hwnd);
GetClientRect(hwnd,&scr_dim);
center_x=(scr_dim.right-scr_dim.left)/2;
center_y=(scr_dim.bottom-scr_dim.top)/2;
SelectObject(hdc,hBlk_Brush);
PatBlt(hdc,0,0,scr_dim.right,scr_dim.bottom,PATCOPY);
ReleaseDC(hwnd,hdc);
break;
case WM_MOUSEMOVE:
c = 25;
case WM_TIMER:
hdc=GetDC(hwnd);
///ys=d/3.0;
//xs=c/3.0;
ys=d/3.5;
xs=c/3.5;
for(i=0;i<1000;i++)
{
temp=(xs+k*sin(ys))*cos(2*Pi/q)+ys*sin(2*Pi/q);
ys=-(xs+k*sin(ys))*sin(2*Pi/q)+ys*cos(2*Pi/q);
xs=temp;
x=(int)(xs*hs);
y=(int)(ys*vs);
if(i>10) {
SetPixel(hdc,x+center_x,center_y-y,RGB(red,green,blue));
SetPixel(hdc,x+80,center_y-y,RGB(green,blue,red));
//SetPixel(hdc,x+80,center_y-y,RGB(i,i,i));
SetPixel(hdc,GetSystemMetrics(SM_CXSCREEN)-x,center_y-y,RGB(blue,red,green));
}
}
c++;
if(c>24)
{
c=1;
d++;
if(d>24)
{
d=1;
q++;
SelectObject(hdc,hBlk_Brush);
PatBlt(hdc,0,0,scr_dim.right,scr_dim.bottom,PATCOPY);
red=Rand(256);
green=Rand(256);
blue=Rand(256);
if(q>12)
{
q=3;
c=1;
d=1;
}
}
}
ReleaseDC(hwnd,hdc);
break;
case WM_DESTROY:
KillTimer(hwnd,1);
break;
default:
return DefScreenSaverProc(hwnd,message,wParam,lParam);
}
return 0;
}

#include <windows.h>
#include <scrnsave.h>
#include <math.h>

#include <commctrl.h>

#pragma comment(lib,"scrnsave.lib")
#pragma comment(lib,"comctl32.lib")

int delay=8; 
const	double Pi=3.1415926;
int		Rand(int);

int	Rand(int nMax)
{
	static	long	seed=GetTickCount();

	seed=(25173*seed+13849)%65535; 
	return abs(seed%nMax);
}

BOOL WINAPI ScreenSaverConfigureDialog(HWND hwnd,UINT message,
									   WPARAM wParam,LPARAM lParam)
{
	return 0;
}

BOOL WINAPI RegisterDialogClasses(HANDLE hInst)
{
	return 1;
}





LRESULT WINAPI ScreenSaverProc(HWND hwnd,UINT message,
							   WPARAM wParam,LPARAM lParam)
{
	static	HDC	hdc;
	static	RECT	scr_dim;
	static	SIZE	size;
	static	HBRUSH	hBlk_Brush;
	static	int	d=1,c=1,q=3,center_x,center_y,hs,vs;
	static long	red,green,blue;
	int		i,x,y;
	double	xs,ys,temp,k=0.2;
	switch(message)
	{

	case	WM_CREATE: 
		SetTimer(hwnd,1,delay,NULL); 
		hBlk_Brush=(HBRUSH)GetStockObject(BLACK_BRUSH);//Background Black
		red=Rand(256);
		green=Rand(256);
		blue=Rand(256);
		hs=GetSystemMetrics(SM_CXSCREEN)/30;
		vs=GetSystemMetrics(SM_CYSCREEN)/30;
		//hs=GetSystemMetrics(SM_CXVIRTUALSCREEN)/30;
		//vs=GetSystemMetrics(SM_CYVIRTUALSCREEN)/30;

		break;
	case	WM_ERASEBKGND: 
		hdc=GetDC(hwnd);
		GetClientRect(hwnd,&scr_dim);
		center_x=(scr_dim.right-scr_dim.left)/2;
		center_y=(scr_dim.bottom-scr_dim.top)/2;
		SelectObject(hdc,hBlk_Brush);
		PatBlt(hdc,0,0,scr_dim.right,scr_dim.bottom,PATCOPY); 
		ReleaseDC(hwnd,hdc);
		break;

	case	WM_MOUSEMOVE:
		c = 25;
	case	WM_TIMER: 

		hdc=GetDC(hwnd);
		///ys=d/3.0;
		//xs=c/3.0;
		ys=d/3.5;
		xs=c/3.5;

		for(i=0;i<1000;i++)
		{
			temp=(xs+k*sin(ys))*cos(2*Pi/q)+ys*sin(2*Pi/q);
			ys=-(xs+k*sin(ys))*sin(2*Pi/q)+ys*cos(2*Pi/q);

	

			xs=temp;
			x=(int)(xs*hs);
			y=(int)(ys*vs);
			if(i>10) {
				SetPixel(hdc,x+center_x,center_y-y,RGB(red,green,blue));
			    SetPixel(hdc,x+80,center_y-y,RGB(green,blue,red));
				//SetPixel(hdc,x+80,center_y-y,RGB(i,i,i));
				SetPixel(hdc,GetSystemMetrics(SM_CXSCREEN)-x,center_y-y,RGB(blue,red,green));
			}
		}
		c++;
		if(c>24)
		{
			c=1;
			d++;
			if(d>24)
			{
				d=1;
				q++;
				SelectObject(hdc,hBlk_Brush);
				PatBlt(hdc,0,0,scr_dim.right,scr_dim.bottom,PATCOPY);
				red=Rand(256);
				green=Rand(256);
				blue=Rand(256);
				if(q>12)
				{
					q=3;
					c=1;
					d=1;
				}
			}
		}
		ReleaseDC(hwnd,hdc);
		break;
	case	WM_DESTROY:
		KillTimer(hwnd,1);
		break;
	default:
		return	DefScreenSaverProc(hwnd,message,wParam,lParam);
	}
	return 0;
}

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screen-saver
- Release
  - screen-saver.scr!184 320 octets
- ReadMe.txt 2 263 octets
- Resource.h 742 octets
- screen-saver-dual.cpp 2 635 octets
- screen-saver-dual.h 39 octets
- screen-saver-dual.ico 67 646 octets
- screen-saver-dual.ncb35 840 octets
- screen-saver-dual.rc 3 001 octets
- screen-saver-dual.sln 923 octets
- screen-saver-dual.suo8 192 octets
- screen-saver-dual.vcproj3 789 octets
- stdafx.cpp 304 octets
- stdafx.h 490 octets

Télécharger le zip

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Commentaires

Commentaire de gagah1 le 03/07/2008 16:23:42

Pas mal pour une source basic.
J'ai modifié la source pour mettre la capture d'écran en image de fond. Et comme les 3 effets ne sont pas symetriques, je ne retient que celui du centre, j'ai remplacé pi par le macro M_PI:

#include <windows.h>
#include <scrnsave.h>
#include <math.h>
#include <commctrl.h>

int delay = 8;
int Rand(int);

int Rand(int nMax)
{
rand()%nMax;
}

BOOL WINAPI ScreenSaverConfigureDialog(HWND hwnd,UINT message, WPARAM wParam,LPARAM lParam)
{
return 0;
}

BOOL WINAPI RegisterDialogClasses(HANDLE hInst)
{
return 1;
}

LRESULT WINAPI ScreenSaverProc(HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam)
{
static  HBITMAP hbmp;
static RECT scr_dim;
static SIZE size;
static int d=1, c=1, q=3, center_x, center_y, hs, vs;
static int screenWidth, screenHeight;
static long red,green,blue;
HDC    hdc, hdcMem;
int i,x,y;
double xs, ys, temp, k=0.2;

    switch(message)
{
     case WM_CREATE:
            srand(GetTickCount());
     SetTimer(hwnd,1,delay,NULL);
     red=Rand(256);
     green=Rand(256);
     blue=Rand(256);
     hs = GetSystemMetrics(SM_CXSCREEN)/30;
     vs = GetSystemMetrics(SM_CYSCREEN)/30;

     screenWidth = GetSystemMetrics(SM_CXSCREEN);
     screenHeight = GetSystemMetrics(SM_CYSCREEN);
            hdc = CreateDCA("DISPLAY", NULL, NULL, NULL);
            hdcMem = CreateCompatibleDC(hdc);

            hbmp = CreateCompatibleBitmap(hdc, screenWidth, screenHeight );
            SelectObject (hdcMem, hbmp);
            BitBlt(hdcMem, 0, 0, screenWidth, screenHeight, hdc, 0, 0, SRCCOPY);

            DeleteDC(hdc);
            DeleteDC(hdcMem);

     break;
     case WM_ERASEBKGND:
     hdc = GetDC(hwnd);
     hdcMem = CreateCompatibleDC(hdc);
     GetClientRect(hwnd, &scr_dim);
     center_x = (scr_dim.right - scr_dim.left)/2;
     center_y = (scr_dim.bottom - scr_dim.top)/2;
     SelectObject(hdcMem, hbmp);
            BitBlt(hdc, 0, 0, screenWidth, screenHeight, hdcMem, 0, 0, SRCCOPY);

            DeleteDC(hdcMem);
            ReleaseDC(hwnd, hdc);
     break;

     case WM_TIMER:
     hdc = GetDC(hwnd);
     hdcMem = CreateCompatibleDC(hdc);

     ys = d/3.0;
     xs = c/3.0;

     for(i=0; i<1000; i++)
     {
     temp =(xs + k*sin(ys))*cos(2*M_PI/q) + ys*sin(2*M_PI/q);
     ys = -(xs + k*sin(ys))*sin(2*M_PI/q) + ys*cos(2*M_PI/q);

     xs = temp;
     x = (int)(xs * hs);
     y = (int)(ys * vs);
     if(i>10)
                    SetPixel(hdc, x + center_x, center_y - y, RGB(red, green, blue));
     }
     c++;
     if(c>24)
     {
     c=1;
     d++;
     if(d>24)
     {
     d=1;
     q++;
     SelectObject(hdcMem, hbmp);
                    BitBlt(hdc, 0, 0, screenWidth, screenHeight, hdcMem, 0, 0, SRCCOPY);
     red=Rand(256);
     green=Rand(256);
     blue=Rand(256);
     if(q>12)
     {
     q=3;
     c=1;
     d=1;
     }
     }
     }
     DeleteDC(hdcMem);
            ReleaseDC(hwnd,hdc);
     break;

        case WM_DESTROY:
     KillTimer(hwnd,1);
     DeleteObject(hbmp);
     break;

        default:
     return DefScreenSaverProc(hwnd,message,wParam,lParam);
}
return 0;
}
Commentaire de f_l_a_s_h_b_a_c_k le 03/07/2008 19:31:05

"3 effets ne sont pas symetriques"

moi mon ordi a 2 ecran et il marche ok,
je l ai pas tester sur 1 ecran...

jái tester t a source ses cool!
ses different je vois plus l ecran en noir :)

il a fallu que je modifie

int Rand(int nMax)
{
return rand()%nMax;
}

et que je rajoute #define M_PI 3.14159
Commentaire de gagah1 le 03/07/2008 19:40:26

M_PI est déjà défini dans math.h
Je parle de symetrie, le positionnement des 2 effets par rapport à celui du centre.

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